20435051 has 32 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 14961024.

The previous prime is 20435039. The next prime is 20435059. The reversal of 20435051 is 15053402.

It is not a de Polignac number, because 20435051 - 2¹⁴ = 20418667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20435059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91526 + ... + 91748.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^20435051 is an apocalyptic number.

20435051 is a deficient number, since it is larger than the sum of its proper divisors (6659989).

20435051 is a wasteful number, since it uses less digits than its factorization.

20435051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20435051 is about 4520.5144618727. The cubic root of 20435051 is about 273.3958441535.

Adding to 20435051 its reverse (15053402), we get a palindrome (35488453).

The spelling of 20435051 in words is "twenty million, four hundred thirty-five thousand, fifty-one".